Benz, Dominik, Grobelnik, Marko, Hotho, Andreas, Jäschke, Robert, Mladenic, Dunja, Servedio, Vito D. P., Sizov, Sergej and Szomszor, Martin. "Analyzing Tag Semantics Across Collaborative Tagging Systems." Paper presented at the meeting of the Social Web Communities, Dagstuhl, Germany, 2008.